Model Kate Upton is on the cover of the 2012 Sports Illustrated Swimsuit issue.

In this image released by Sports Illustrated on Monday, Feb. 13, 2012, model Kate Upton is shown in a photo from the "Sports Illustrated 2012 Swimsuit Issue." Upton also graces the cover of the double issue now on sale at newsstands, tablet, mobile and at SI.com/Swimsuit. (AP Photo/Walter Iooss Jr. for Sports Illustrated) NORTH AMERICA USE ONLY UNTIL MARCH 2, 2012. MANDATORY CREDIT: WALTER IOOSS JR/SPORTS ILLUSTRATED

In this photo provided by CBS, model Kate Upton poses with a billboard image of the 2012 Sports Illustrated Swimsuit issue, Monday, Feb. 13, 2012 in New York as part of her appearance on Late Show with David Letterman. Upton is on the cover of the 2012 Sports Illustrated Swimsuit issue. (AP Photo/CBS, John Paul Filo)

MIAMI BEACH, FL - JULY 15: Kate Upton walks the runway at the Beach Bunny Swimwear show during Merecdes-Benz Fashion Week Swim 2012 at The Raleigh on July 15, 2011 in Miami Beach, Florida. (Photo by Frazer Harrison/Getty Images for Beach Bunny)

MIAMI BEACH, FL - JULY 15: Kate Upton prepares backstage at the Beach Bunny Swimwear show during Mercedes-Benz Fashion Week Swim 2012 at The Raleigh on July 15, 2011 in Miami Beach, Florida. (Photo by Donald Bowers/Getty Images for Make Up For Ever)

INDIANAPOLIS, IN - FEBRUARY 04: Model Kate Upton attends DIRECTV's Sixth Annual Celebrity Beach Bowl Game at Victory Field on February 4, 2012 in Indianapolis, Indiana. (Photo by Theo Wargo/Getty Images for DirecTV)